Officials warn motorists of black ice

RALEIGH - The Department of Public Safety and State Highway Patrol issuing a safety alert warning drivers of black ice. Black ice forms when the air temperature is warmer than pavement, which causes moisture to rapidly freeze and create a thin, transparent layer of ice on the roadway. It forms on heavily traveled roadways, shaded areas and especially on bridges and overpasses.

RALEIGH - The Department of Public Safety and State Highway Patrol issuing a safety alert warning drivers of black ice. Black ice forms when the air temperature is warmer than pavement, which causes moisture to rapidly freeze and create a thin, transparent layer of ice on the roadway. It forms on heavily traveled roadways, shaded areas and especially on bridges and overpasses.

"As we enter the evening hours, the temperature across the state will quickly drop into the single digits. As a result, roadways will become extremely treacherous and possibly impassable," said Colonel Bill Grey, commander of the State Highway Patrol. "Black ice can be one of the most dangerous conditions as a result of winter weather and is almost invisible. We are asking `motorists not to drive unless absolutely necessary."

Drivers can increase safety by observing the following tips:

Be aware that black ice is almost invisible.

Be especially careful on bridges and overpasses.

Never brake while driving on ice. Applying pressure to your brakes while on ice will cause a vehicle to skid. Brake prior to bridges and overpasses.

Increase your following distance. Keep at least a three-car distance from the vehicle directly in front of you.